CN111346585A - Reaction unit is used in laboratory based on temperature control - Google Patents
Reaction unit is used in laboratory based on temperature control Download PDFInfo
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- CN111346585A CN111346585A CN201811579870.3A CN201811579870A CN111346585A CN 111346585 A CN111346585 A CN 111346585A CN 201811579870 A CN201811579870 A CN 201811579870A CN 111346585 A CN111346585 A CN 111346585A
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- temperature
- temperature control
- stirring rod
- motor
- reaction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00058—Temperature measurement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00099—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor the reactor being immersed in the heat exchange medium
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to a reaction device for a laboratory based on temperature control, which comprises: base, stand, stirring connecting rod, motor, stirring rod, temperature sensor, reaction vessel and temperature regulating device, wherein, the stand sets up on the base, the one end of connecting rod with the stand is connected, the other end of connecting rod is connected the motor, the output of motor is connected the one end of stirring rod, the other end setting of stirring rod is in among the reaction vessel, temperature sensor sets up in the stirring rod, reaction vessel sets up among the temperature regulating device, the motor with temperature regulating device connects. According to the embodiment of the invention, the temperature sensor is arranged in the stirring rod, and the temperature is displayed on the motor, so that the problem that the thermometer cannot be accurately read due to the connection of the connecting device is solved, the reaction temperature can be read in real time, and the control of the reaction temperature is facilitated.
Description
Technical Field
The invention belongs to the technical field of experimental equipment, and particularly relates to a reaction device for a laboratory based on temperature control.
Background
Stirring is a common material mixing method in chemical production, and the common stirring in a laboratory comprises mechanical stirring and magnetic stirring. The mechanical stirring drives the stirring paddle to rotate in the container through the stirrer so as to drive the animal materials to rotate, and the materials are mixed. In a chemical experiment, stirring can promote heating, cooling and heat transfer of a device to a material, and homogenize the temperature of the material; can promote the chemical reactions such as dissolution, crystallization, agglomeration and the like; and the mixing uniformity of the components in the material can be promoted.
In chemical synthesis, in order to accurately control the reaction conditions, a stirring rod and a thermometer are often arranged in a three-neck flask at the same time; the caliber of the three-neck flask is larger than the diameter of the thermometer, the thermometer needs to be installed in the three-neck flask through a rubber plug or other connecting devices, but the temperature at the connecting position is often not accurately read due to the non-transparency of the connecting devices, so that the temperature control of the reaction is influenced, and even serious consequences occur.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a reaction device for a laboratory based on temperature control. The technical problem to be solved by the invention is realized by the following technical scheme:
the embodiment of the invention provides a reaction device for a laboratory based on temperature control, which comprises: a base, a column, a stirring connecting rod, a motor, a stirring rod, a temperature sensor, a reaction vessel and a temperature control device, wherein,
the stand sets up on the base, the one end of connecting rod with the stand is connected, the other end of connecting rod is connected the motor, the output of motor is connected the one end of stirring rod, the other end setting of stirring rod is in among the reaction vessel, temperature sensor sets up in the stirring rod, reaction vessel sets up among the temperature regulating device, the motor with the temperature regulating device electricity is connected.
In one embodiment of the invention, one end of the connecting rod is connected with the upright post through a cross clamp.
In one embodiment of the present invention, the motor is provided with a first control switch and a first display screen.
In one embodiment of the invention, the connecting bar is perpendicular to the upright.
In one embodiment of the invention, one end of the stirring rod is connected with the output end of the motor through a thread, and the other end of the stirring rod is provided with a blade.
In one embodiment of the invention, the paddle comprises a movable paddle.
In one embodiment of the present invention, the stirring rod is a hollow structure, and the temperature sensor is disposed in the hollow structure.
In one embodiment of the invention, the length of the temperature sensor is greater than the length of the stir bar.
In an embodiment of the present invention, the temperature control device includes a water tank and a temperature control panel, wherein the temperature control panel is provided with a second display screen, a second control switch and a power switch.
In an embodiment of the present invention, the temperature control panel is further provided with an upper computer and a control unit, wherein the upper computer is configured to collect temperature information output by the motor and send a control signal to the control unit, and the control unit is configured to control the temperature of the water tank according to the control signal.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the temperature sensor is arranged in the stirring rod, and the temperature is displayed on the motor, so that the problem that the thermometer cannot be accurately read due to the connection of the connecting device is solved, and the reaction temperature can be read in real time; meanwhile, the temperature display is connected with the temperature control device, so that the temperature can be automatically adjusted, and the control of the reaction temperature is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a temperature control-based laboratory reaction apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a motor according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a reaction apparatus for a laboratory according to an embodiment of the present invention, including: base 1, stand 2, connecting rod 4, motor 5, stirring rod 6, temperature sensor 7, reaction vessel 8 and temperature regulating device 9, wherein, stand 2 sets up on base 1, the one end and the stand 2 of connecting rod 4 are connected, motor 5 is connected to the other end of connecting rod 4, the one end of stirring rod 6 is connected to the output of motor 5, the other end setting of stirring rod 6 is in reaction vessel 8, temperature sensor 7 sets up in stirring rod 6, reaction vessel 8 sets up in temperature regulating device 9, motor 5 is connected with temperature regulating device 9 electricity.
In a specific embodiment, the upright post 2 is connected to the base 1 through threads, and the threads are convenient to disassemble and assemble, so that the use flexibility of the base is improved; furthermore, the upright column 2 comprises two or more connecting rods, all the connecting rods are connected through threads, and the height of the upright column can be freely selected according to experiment requirements by adopting the two or more connecting rods; further, base 1 and stand 2 are the great metal of density, and preferred iron adopts the great metal of density to be convenient for stabilize agitating unit when using, avoids taking place to rock.
In a particular embodiment, the connecting rod 4 is connected to the upright 2 by means of a cross clamp 3; the connecting rod 4 is vertically connected with the upright post 2, so that the running stability of the motor and the stirring rod can be improved, and the influence of severe shaking of the motor on the stability of the reaction vessel is avoided; further, the material of the connecting rod 4 comprises metal, preferably iron.
In an embodiment, a control switch 51 and a first display screen 52 are disposed on the motor 5, please refer to fig. 2, and fig. 2 is a schematic structural diagram of the motor according to an embodiment of the present invention, wherein the control switch 5 is used for controlling the disconnection between the motor and the power supply and simultaneously controlling the rotation speed of the stirring device, and the first display screen 52 is used for displaying the rotation speed of the stirring device and the temperature of the temperature sensor.
In a specific embodiment, the output end of the motor 5 at one end of the stirring rod 6 is connected through threads, and the other end of the stirring rod 6 is provided with a blade 61; further, the paddle 61 is a movable paddle, and the paddle 61 is movably connected to the other end of the stirring rod 6, so that the stirring rod can be conveniently installed in the three-neck flask; specifically, when the stirring rod is placed in the three-neck flask, the blades 61 shrink upwards, at the moment, the width of the contracted blades is smaller than the diameter of an inlet of the three-neck flask, the stirring rod enters the three-neck flask for screen burning, and then the blades are unfolded to facilitate stirring; furthermore, the outer layer of the stirring rod 6 and the paddle 61 are made of polytetrafluoroethylene, and the stirring rod is made of polytetrafluoroethylene, so that the stirring rod is corrosion-resistant, and the service life of the stirring rod is prolonged.
In one embodiment, the stirring rod 6 is a hollow structure, and the temperature sensor 7 is arranged in the hollow structure; furthermore, the diameter of the temperature sensor 7 is equal to that of the hollow structure, the temperature sensor is in close contact with the hollow structure, and the temperature sensor and the hollow structure adopt the same diameter, so that the temperature sensor can be prevented from shaking during stirring, and further the temperature sensor can also shake violently, and the stability of the system is improved; further, the temperature sensor 7 is connected with the output end of the motor 5 through threads; further, the length of the temperature sensor 7 is greater than that of the stirring rod 6; specifically, the length of the temperature sensor extending out of the stirring rod is more than 0 cm and less than 1cm, and the temperature sensor extends out of the stirring rod, so that the temperature sensor can accurately measure the temperature of the reaction solution below the stirring rod and the temperature around the stirring rod, and the measurement accuracy is improved; meanwhile, the temperature of the temperature sensor extending out of the stirring rod cannot be too long, and the temperature sensor can be contacted with the bottom of the reaction container due to the too long temperature, so that the measurement is inaccurate.
In a particular embodiment, the reaction vessel includes, but is not limited to, one of a single-neck flask, a three-neck flask, a multi-neck flask; the reaction vessel can also be an open vessel; further, the volume of the solution in the reaction vessel is not more than three-quarters of the total volume thereof, the paddle and the temperature sensor are immersed in the solution; preferably, the distance between the paddle and the temperature sensor and the bottom of the reaction container is 1-2 cm, so that the solution can be fully stirred, the temperature can be accurately measured, and the stirring rod can be prevented from colliding with the wall of the container during stirring.
In one embodiment, the temperature control device comprises a water tank 94 and a temperature control panel, and the temperature control panel is provided with a second display screen 91, a second control switch 92 and a power switch 93; specifically, the water tank 94 contains water, and the control panel is used for controlling heating and cooling of the water in the water tank; the power switch 93 is used for controlling the power-on and power-off of the control panel, the second control switch 92 is used for adjusting the heating temperature, and the second display screen is used for displaying the temperature of water in the water tank; further, when an ice-water bath reaction is required, ice can be added into the water tank to control the cooling temperature; further, in a state where the reaction system and the temperature control system are both stable, the temperature displayed by the first display screen 52 is the same as the temperature displayed by the second display screen 91.
In a specific embodiment, the temperature control panel is further provided with an upper computer and a control unit, wherein the upper computer is used for collecting temperature information output by the motor 5 and sending a control signal to the control unit, and the control unit is used for controlling the temperature of the water tank according to the control signal; furthermore, a temperature change range is preset according to the type of the reaction and the reaction condition, when the temperature displayed by the motor 5 exceeds the upper limit of the preset temperature range, the upper computer collects the temperature and sends the temperature to the control unit, and the control unit detects that the temperature exceeds the range and controls the heating device of the water tank to cool down; when the temperature displayed by the motor 5 is lower than the lower limit of the preset temperature range, the upper computer collects the temperature value and sends the temperature value to the control unit, and the control unit detects that the temperature is too low and controls the heating device of the water tank to heat; when the temperature of the motor 5 is within the preset temperature range, the upper computer does not operate.
The working principle of the stirrer provided by the embodiment of the invention is as follows: placing a supporting device and a temperature control device in a fume hood with a flat table surface, and then sequentially installing a driving device, a stirring device, a temperature sensor and a reaction container; turning on a control switch on the motor, regulating the speed through a speed regulating switch, and observing the rotating speed on the first display screen to determine the final rotating speed; after materials in the reaction container are uniformly mixed, turning on a power supply of a temperature control device, and controlling the heating temperature to raise the temperature to a preset temperature; when the reaction starts, the temperature sensor measures the temperature, the temperature is reflected on the first display screen, the rotating speed of the stirring rod is adjusted according to the temperature of the first display screen, and the termination of the reaction is judged; in the reaction process, the temperature is adjusted by an upper computer and a control unit.
According to the embodiment of the invention, the temperature sensor is arranged in the stirring device, so that the stirring rod is prevented from rubbing or colliding with the thermometer when the stirring rod is used for stirring, the thermometer is not damaged by the stirring rod, the thermometer can measure the temperature of the center of a reaction solution, the temperature of the reaction can be accurately measured, and the observation and control of the reaction are facilitated; meanwhile, the temperature is displayed on the motor, so that the problem that the thermometer cannot be read accurately due to the connection of the connecting device is solved, and the reaction temperature can be read in real time; meanwhile, the temperature display is connected with the temperature control device, so that the temperature can be automatically adjusted, and the control of the reaction temperature is facilitated.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A reaction unit is used in laboratory based on temperature control, its characterized in that includes: a base (1), a column (2), a stirring connecting rod (4), a motor (5), a stirring rod (6), a temperature sensor (7), a reaction vessel (8) and a temperature control device (9), wherein,
stand (2) set up on base (1), the one end of connecting rod (4) with stand (2) are connected, the other end of connecting rod (4) is connected motor (5), the output of motor (5) is connected the one end of stirring rod (6), the other end setting of stirring rod (6) is in among reaction vessel (8), temperature sensor (7) set up in stirring rod (6), reaction vessel (8) set up among temperature regulating device (9), motor (5) with temperature regulating device (9) electricity is connected.
2. The temperature control-based laboratory reaction device according to claim 1, characterized in that one end of the connecting rod (4) is connected with the column (2) through a cross clamp (3).
3. A temperature control based laboratory reaction apparatus according to claim 1, wherein said motor (5) is provided with a first control switch (51) and a first display screen (52).
4. The temperature control-based laboratory reaction device according to claim 1, characterized in that said connecting rods (4) are perpendicular to said vertical columns (2).
5. The temperature control-based laboratory reaction device according to claim 1, wherein one end of said stirring rod (6) is connected with the output end of said motor (5) through screw threads, and the other end of said stirring rod (6) is provided with a paddle (61).
6. The temperature control-based laboratory reaction device according to claim 5, wherein said paddle (61) comprises a movable paddle.
7. The temperature control-based laboratory reaction device according to claim 1, wherein said stirring rod (6) is a hollow structure, and said temperature sensor (7) is disposed in said hollow structure.
8. The temperature control-based laboratory reaction device according to claim 7, characterized in that the length of said temperature sensor (7) is greater than the length of said stirring rod.
9. The reaction device for the laboratory based on the temperature control as claimed in claim 1, wherein said temperature control device (9) comprises a water tank (94) and a temperature control panel, wherein a second display screen (91), a second control switch (92) and a power switch (93) are arranged on said temperature control panel.
10. The reaction device for the temperature control-based laboratory according to claim 9, wherein the temperature control panel is further provided with an upper computer and a control unit, wherein the upper computer is used for collecting the temperature information output by the motor (5) and sending a control signal to the control unit, and the control unit is used for controlling the temperature of the water tank according to the control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579870.3A CN111346585A (en) | 2018-12-24 | 2018-12-24 | Reaction unit is used in laboratory based on temperature control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811579870.3A CN111346585A (en) | 2018-12-24 | 2018-12-24 | Reaction unit is used in laboratory based on temperature control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111346585A true CN111346585A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811579870.3A Pending CN111346585A (en) | 2018-12-24 | 2018-12-24 | Reaction unit is used in laboratory based on temperature control |
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| Country | Link |
|---|---|
| CN (1) | CN111346585A (en) |
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2018
- 2018-12-24 CN CN201811579870.3A patent/CN111346585A/en active Pending
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